From: Phrogz <phrogz@...>
Date: 2007-11-24T03:15:05+09:00
Subject: Re: read a xml file

On Nov 23, 6:14 am, Bulhac Mihai <mihai.bul...@yahoo.com> wrote:
> hello, im new in using rexml and a i have a first question: how can a
> read this file:
> <drive name="c">
>   <folder name="folder1">
>     <subfolder name="sub1">
>     </subfolder>
>     <subfolder name="sub2">
>         <file name="file1"></file>
>         <file name="file2"></file>
>     </subfolder>
>     <subfolder  name="sub3">
>         <file name="file1">
>     </subfolder>
>
>   </folder>
>   <folder name="folder2">
>       <file name="file1">
>       </file>
>       <file name="file2">
>       </file>
>   </folder>
> </drive>
>
> i want to read all children so that output will be something like that:
> drive C
>   folder folder1
>        subfolder sub1
>        subfolder sub2
>             file file1
>             file file2
>        subfoler sub3
>    folder folder2
>         file file1
>         file file2

Note that I had to fix your XML - you were missing a closing tag for
one of your files.

def show_item( rexml_element, level=0 )
  print "  "*level
  puts "#{rexml_element.name} #{rexml_element.attributes['name']}"
  rexml_element.elements.each{ |el|
    show_item( el, level+1 )
  }
end

require 'rexml/document'
doc = REXML::Document.new( DATA.read )

show_item( doc.root )

__END__
<drive name="c">
  <folder name="folder1">
    <subfolder name="sub1">
    </subfolder>
    <subfolder name="sub2">
        <file name="file1"></file>
        <file name="file2"></file>
    </subfolder>
    <subfolder  name="sub3">
        <file name="file1" />
    </subfolder>
  </folder>
  <folder name="folder2">
      <file name="file1">
      </file>
      <file name="file2">
      </file>
  </folder>
</drive>